Ironically enough, because Kimba is a story about equality. It shoots itself in the foot with ugly stereotypes from the 50s, but it never shies away from telling you any sort of discrimination is bad: https://i.imgur.com/kMcgsiV.png

As for Kimba himself... A big part is that baseball mascot. 💦
You look at him and tell me he ain't perfect: https://imgur.com/a/hIa8zdF

Now, seriously. I don't know who you are, or why the fuck you think just because I like some old cartoon nobody remembers, I'm suddenly the worst person ever. But I'd never condone any type of racism, period. And you can rest easy knowing everyone who worked on this show is now dead.